Description: Quality Material: This Valve Adapter is made of quality material such as aluminium alloy, which ensures the durability and wear-resistance. Mutilfunctional: The set of this valve adapter not only helps convert the needle but also links between nozzle and inflator. Simple Operation: the valve adapter is easy to use, which needs a few steps that you can change the valve. Tested Quality: Our product must be tested before selling it, so please be assured to use. Compatibility: The valve adapter is compatible for football, basketball and volleyball. Specification: Material: iron plastic Color: show as picture Size: 5*4*1 cm/ 1.96*1.57*0.39 inch Weight: 3 in 1: 8g 4 in 1: 23g Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Set of 3-in-1 1 Set of 4-in1